Made 40 years ago, Dario Argento’s gripping horror remains an impressive classic in which his stylized flourishes of the genre began to develop. When American dancer Suzy (Jessica Harper) enrolls at a prestigious ballet academy in Germany, she and her roommate (Stefania Casini) are caught in sinister web of murderous witchcraft on campus. This shocking cult favorite is scored by the Italian prog-rock band Goblin, a recurring musical collaborator of Argento’s.